Descamps Lilian R, Sánchez Chopa Carolina, Ferrero Adriana A
Laboratorio de Zoología Agrícola, Depto de Agronomía, Universidad Nacional del Sur. San Andrés s/n Altos Palihue, (8000) Bahía Blanca, Argentina.
Nat Prod Commun. 2011 Jun;6(6):887-91.
Essential oils extracted from leaves and fruits of Schinus areira (Anacardiaceae) were tested for their repellent, toxic and feeding deterrent properties against Tribolium castaneum (Coleoptera: Tenebrionidae) larvae and adults. A topical application assay was employed for the contact toxicity study and filter paper impregnation for the fumigant assay. A treated diet was also used to evaluate the repellent activity and a flour disk bioassay for the feeding deterrent action and nutritional index alteration. The essential oil of the leaves contained mainly monoterpenoids, with alpha-phellandrene, 3-carene and camphene predominant, whereas that from the fruits contained mainly alpha-phellandrene, 3-carene and beta-myrcene. The leaf essential oil showed repellent effects, whereas that from the fruit was an attractant. Both oils produced mortality against larvae in topical and fumigant bioassays, but fumigant toxicity was not found against adults. Moreover, both essential oils produced some alterations in nutritional index. These results show that the essential oils from S. areira could be applicable to the management of populations of Tribolium castaneum.
对从秘鲁胡椒（漆树科）的叶子和果实中提取的精油进行了测试，以研究其对赤拟谷盗（鞘翅目：拟步甲科）幼虫和成虫的驱避、毒性和取食抑制特性。接触毒性研究采用局部涂抹试验，熏蒸试验采用滤纸浸渍法。还使用经处理的饲料来评估驱避活性，并采用面粉圆盘生物测定法来评估取食抑制作用和营养指标变化。叶精油主要含有单萜类化合物，其中α-水芹烯、3-蒈烯和莰烯占主导地位，而果实精油主要含有α-水芹烯、3-蒈烯和β-月桂烯。叶精油表现出驱避作用，而果实精油是一种引诱剂。两种精油在局部涂抹和熏蒸生物测定中均对幼虫产生致死作用，但对成虫未发现熏蒸毒性。此外，两种精油均使营养指标发生了一些变化。这些结果表明，秘鲁胡椒精油可用于赤拟谷盗种群的管理。
